PISA STYLE QUESTIONS WITH MARKING GUIDE http://pisa-sq.acer.edu.au/index.php


Which of the following questions is scientifically testable?

a) Which tastes better Coke or Pepsi?
b) Which is best Crest whitener or Colgate whitener?
c) How does water purity affect surface tension?
d) ?






Online Research
Which of the following websites would be most trustworthy?

a)http://www.windows.ucar.edu/tour/link=/earth/Water/dissolved_salts.html

b)http://en.wikipedia.org/wiki/Salinity
c) http://www.engineeringtoolbox.com/water-salinity-d_1251.html
d) http://cr4.globalspec.com/thread/28741/Measuring-Salinity-of-Water

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What variables need to be identified (controlled) if you were testing the amount of water needed to germinate a bean? What other factors affect germination? Make a list.



What variables need to be identified if you were testing the height a basketball and a baseball will bounce higher?


Procedure writing.

Describe how to brush your teeth, exchange and only follow the instructions given.

How to set-up your XBOX or PS3.
How do you determine the solubility of salt in water at room temperature?






Create a title for these results?
Suggest a testable question that lead a researcher to gather this data.
Write a conclusion based on your question and these results. What application could these findings have on the aquaculture industry?
Untitled_2.png

What type of graph would best represent the following data?
Compostion of Sea Water




Element
ppm
Chlorine, Cl
19,500
Sodium, Na
10,770
Magnesium, Mg
1,290
Sulphur, S
905
Calcium, Ca
412
Potassium, K
380
Bromine, Br
67
Carbon, C
28
Nitrogen, N
11.5
Strontium, Sr
8
Oxygen, O
6
Boron, B
4.4
Silicon, Si
2
Fluorine, F
1.3
Argon, Ar
0.43
Lithium, Li
0.18
Rubidium, Rb
0.12
Phosphorus, P
0.06
Iodine, I
0.06
Barium, Ba
0.02
Molybdenium, Mo
0.01
Arsenic, As
0.0037
Uranium, U
0.0032
Vanadium, V
0.0025
Titanium, Ti
0.001
Zinc, Zn
0.0005
Nickel, Ni
0.00048
Aluminium, Al
0.0004








Predicted Hourly Heights (m)


Dates
Time ( AST )

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2009-02-20
0.2
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.5
0.6
0.7
0.7
0.8
0.9
0.9
0.9
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
2009-02-21
0.2
0.2
0.3
0.3
0.3
0.3
0.4
0.4
0.5
0.5
0.6
0.7
0.7
0.8
0.9
0.9
0.9
0.9
0.8
0.7
0.6
0.5
0.4
0.3
2009-02-22
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.4
0.4
0.5
0.5
0.6
0.6
0.7
0.8
0.9
0.9
0.9
0.8
0.8
0.7
0.6
0.5
0.4
2009-02-23
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.6
0.7
0.8
0.9
0.9
0.9
0.8
0.7
0.6
0.5
0.4
2009-02-24
0.4
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.6
0.7
0.8
0.9
0.9
0.8
0.8
0.7
0.6
0.5
2009-02-25
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.6
0.7
0.8
0.8
0.8
0.8
0.7
0.6
0.5
2009-02-26
0.4
0.4
0.4
0.4
0.5
0.5
0.6
0.6
0.5
0.5
0.4
0.4
0.3
0.3
0.4
0.4
0.6
0.7
0.8
0.8
0.8
0.7
0.6
0.5






Graphing :

Independant on x-axis
Dependant Variable on y- axis